Research published by two teams of Army scientists and collaborators has identified a cellular protein that plays a critical role in Ebola virus infection. The findings, published online in separate studies in the journal Nature, suggest a possible strategy for combating one of the world's most deadly viruses. Ebola causes hemorrhagic fever with case fatality rates as high as 90 percent in humans. The virus is of concern both as a global public health threat and as a potential agent of biological terrorism. Currently there are no available vaccines or therapies to combat the disease. In addition, much is still unknown about the exact mechanism by which Ebola virus invades cells and causes infection.